Around 200 guests attended the couple's wedding ceremony at Chicago's Trinity United. "It was beautiful," Michelle's close pal, PR exec Yvonne Davila, once told Us Weekly of the couple, who met in 1989. "Her dress was beautiful. She was happy. She was marrying the man she loves."

More than two decades later, the spouses -- parents to daughters Malia, 14, and Sasha, 11 -- are solid as ever. "She's gorgeous. She's strong and smart and grounded," Barack once told Chicago magazine. "She's brutally honest, which is good for keeping my head on straight."

Because Barack is scheduled to participate in a live debate with Republican nominee Mitt Romney, 65, in Denver on his anniversary, the Hawaiian-born politician will celebrate the marital milestone October 6, a source tells Us.

"She's just happy that they got to be together for their anniversary," a source close to Michelle explains. "Even being together is not a forgone conclusion in the busy weeks leading up to the election."

To see how the couple's love has grown stronger with time, click here.